Performance in what way? I went from 330mm disks and turbo calipers to 350mm disks and GT3 calipers. I also run some big front brake ducts. GT3 RS I think but not 100% sure.

The performance between them under the majority of circumstances was more down to what pads were fitted than anything else. The turbo ones with decent pads would do 13 back-to-back emergency stops from 70mph with no fade at all. The GT3 ones did see fade under the same test, but not sure on the pads used. I fitted decent pads after that and then no fade again for the next test.

It is more about a larger thermal mass than anything else. You will have slightly more forward brake bias with these as well.

I fitted them because I like the look of them, with good brake ducts, decent fluid and good pads there is not likely to be a real need for them unless you are doing some pretty hardcore driving.

If you are doing changes, I have a couple of 27mm master cylinders available to give you a slightly stiffer pedal.

MC

The return of Marty WildKyalami

Joined: 04 Nov 2016Posts: 1799

Posted: Fri May 10, 2019 11:33 am Post subject:

I thought it was 14 hard stops? _________________Life's too short for cr4ppy cars, keep it German!

Standard turbo brakes are utter pap. Might as well put two blocks of wood either side of the disc. My mum's fiesta stopped better. It was embarrassing, I let my brother in law drive my Porsche and the first thing he mentioned was the terrible brakes. I used to brake twice as early before junctions as I had no confidence in them.

There is thread after thread of wooden brakes comments with replies saying they'll stop if you stand on them. I've been weight training all of my adult life so it's not like I was short on a bit of leg strength.

I fitted GT3 6 pots with standard 997 discs and performance friction pads. I'll change the pads as they squeel, but the braking performance was like switching the light on in a cellar.

Do it, you won't regret it. I'll get some decent discs and it'll be even better.

There's no difference to Pedal travel as the total piston area is the same, but it uses a larger swept area on a bigger radius with better heat management.

I recently replaced the rear disks and pads on my C2, the inner faces were corroded but plenty of meat on them. I was really suprised at the difference.

MC

diverzeusySuzuka

Joined: 10 Nov 2012Posts: 1031Location: Doncaster UK

Posted: Fri May 10, 2019 9:34 pm Post subject:

I have installed 997.1 turbo calipers and discs to all 4 corners, I had no faith in the original 996 turbo brakes, in fact quite terrifying at times!
these are so much better, I have not changed the brake fluid reservoir/master cylinder as some seam to think you must, it may be even better if you do
I also flushed the system, fitted new stainless brake hoses and refilled with ATE performance fluid
these work great now _________________better to spend a lot and lose a little than spend a little and lose it all!

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uk996Silverstone

Joined: 09 Jan 2018Posts: 132Location: Home Counties

Posted: Fri May 10, 2019 9:56 pm Post subject:

I hated the brakes on my car. I've since fitted 350mm Sebro disks all-round (997 turbo) with regular Pagid road pads with the standard calipers with 10mm spacers and high tensile bolts.

Night and day difference and not expensive. I already have the extra brake duct deflectors front and rear. If I want even better braking, I'd go for Pagid RS29._________________2002 996tt Aero in seal grey 6MT

DJonesHockenheim

Joined: 01 May 2011Posts: 658Location: Hampshire

Posted: Fri May 10, 2019 11:27 pm Post subject:

I fitted the GT3 6 pots to mine with 350mm 997 turbo discs and RS29 pads, cracking mod. Stops better than my Ferrari 488 on 400mm carbon ceramic brakes. You won’t regret it but choose the right pad and disc combo.

Both companies have discount codes going at the moment, so take 14% off the CP4L prices.

If I decide to track the car, I'll put Pagid RS29 on. Perhaps Brembo HP2000 or Performance Friction for a more road biased setup, as the RS29 can squeal if they're used too lightly I've been told._________________2002 996tt Aero in seal grey 6MT

uk996Silverstone

Joined: 09 Jan 2018Posts: 132Location: Home Counties

Posted: Sat May 11, 2019 9:49 am Post subject:

I'd would've gone for the 6 pot Brembo calipers, but the prices have been hiked up several times in the last 10 years, from about £700 a pair to £1700 now. Secondhand prices are about 70-75% of the new prices and have gone up to track the prevailing price.

Interestingly Porsche/Brembo brakes were universally praised when the cars were new. I reckon it's the combination of poor pads or discs combined with people's expectations has resulted in them being slated.

The change to 350mm discs and new pads (using the existing 4 pot calipers) have been a significant improvement, well worth doing._________________2002 996tt Aero in seal grey 6MT

sim996Monza

Joined: 05 Aug 2017Posts: 185

Posted: Sat May 11, 2019 10:12 am Post subject:

There's a yellow pair on eBay, will be interesting to see what they go for, currently 380 after 1 day with 8 days to run.

I've been quoted 250 to refurbish mine, fully painted which i will be doing when I get the car back.

DammitIndianapolis

Joined: 23 Sep 2016Posts: 2258

Posted: Sat May 11, 2019 10:26 am Post subject:

I’ve been looking at brakes recently- not for the 911 but for the C55.

A pair of front callipers are £1,002 from Mercedes- these are six pot Brembo units. On eBay they’re ~£650 for a haggard set that will need a £250 refurb.

Which means you ultimately “save” £50 per caliper, but have no warranty and much more faffing around.

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